During general examination of the West Indian Coleoptera Cerambycidae small amounts of material from the Dutch West Indian islands of Curaçao, Bonaire and Aruba came to hand. Following this, Dr. WAGENAAR HUMMELINCK of Utrecht, and Ir. COBBEN of Wageningen, searched their collections and produced fairly considerable numbers of specimens for examination. A personal search amongst the undetermined material in the Zoölogisch Museum, Amsterdam, produced more material, and a little more was found in the Rijksmuseum van Natuurlijke Historie, Leiden. A small quantity of material from Curaçao, from Drs. B. DE JONG, was already in my collection, and this agglomeration of material, collected over a period of years, has given, I think, a reasonable preliminary sample to show the extent of the Cerambycid fauna of the triumvirate under consideration herein. The main affinities of the fauna of these islands appears to be with that of South America, several of the species being widely distributed in the Neotropics. However, there are considerable affinities of genera and species with those of the Antilles.